Develop Reference

Scrolling list with multiple objects

I have been making a form to let the user save his progress. There are 6 virtual slots which contain different save files read from a folder. I want to have the same set up just with a scrollbar to let user scroll through save files, in case he has more than 6 made.
The set up is: picturebox which loads save file when clicked, label for file name and for file date, picturebox to delete the save file, and a panel underneath to save file when the slot is clicked.
Below is the code I use to load in 6 save files. (I will get the date by reading the save file start as it contains the date, but I have not done that part yet).
private void loadsavestoscreen()
{
string filename;
string extension;
string locpath = #"C:\test";
String[] allfiles = System.IO.Directory.GetFiles(locpath, "*.*", System.IO.SearchOption.TopDirectoryOnly);
int counter = 0;
foreach (String file in allfiles)
{
if (counter == 6 || counter == allfiles.Length - 1)
{ labelcheck(); break; }
if ((extension = Path.GetExtension(file)) == ".dat")
{
filename = Path.GetFileNameWithoutExtension(file);
//Console.WriteLine(filename);
changelbl(counter, filename);
counter++;
}
}
}
'labelcheck' checks if the text is correct, if not it hides the label.
'lblchange' changes the name of the label on the correct slot.
My question is: How would I implement a scrollbar to allow the user to scroll through more save files when there is more than 6?
Here's a snippet of the form:
I am slightly new to programming so my apologies if I've made some obvious errors. Thanks for any help.

Without a list object or a container this is not very easy to solve.
I suggest you to use a DataGridView or a ListView object. You can easily add your file entries as objects to these lists. They have an option Scrollable, which you can set true or false.
I would also create a class for that save file entries (storing label/image position and contents) and add them to your DataGridView or ListView.
If you want to know how to add images to those controls:
How do add image to System.Windows.Forms.ListBox?

ObjectListView editing doesn't work

I'm trying to create a simple listbox with ObjectListView (WinForm, C#). The goal is to have a single value (a double) and a check box.
I want to be able to edit the double value by Single Click, so here are the relevant lines of code from my MyWindow.Designer.cs file (i've left out the default values for efficiency):
this.olvDepths = new BrightIdeasSoftware.ObjectListView();
this.olvColumn1 = ((BrightIdeasSoftware.OLVColumn)(new BrightIdeasSoftware.OLVColumn()));
...
this.olvDepths.CellEditActivation = BrightIdeasSoftware.ObjectListView.CellEditActivateMode.SingleClick;
this.olvDepths.CheckBoxes = true;
this.olvDepths.CheckedAspectName = "IsDefault";
this.olvDepths.FullRowSelect = true;
//
// olvColumn1
//
this.olvColumn1.AspectName = "Depth";
this.olvColumn1.Text = "";
this.olvColumn1.IsEditable = true;
I then create a list of my class (ShieldingEntry) and use the olvDepths.SetObjects() with the list. My ShieldingEntry class looks like this:
public class ShieldingEntry
{
public double Depth { get; set; }
public bool IsDefault { get; set; }
}
However, when I click the field, it doesn't go into edit mode. I've also tried the DoubleClick, SingleClickAlways, and F2Only modes and they don't work either.
The Checkbox works fine.
************** I have additional information *********************
I've pulled and build the ObjectListView source, so I could step through it.
I put a breakpoint in the OLV StartCellEdit method and it gets called and appears to setup and select the control appropriately. It just never appears...
As I noted in the comments on the answer below, I've got this control on a tabbed dialog, and if I switch to another tab, then back, the control works fine.
What am I missing?

I've used ObjectListView before, and here is what I had to do:
Handle the CellEditStarting event. This event is raised when the cell goes into edit mode. Since OLV doesn't really have built-in editors, you have to make your own. Then handle the CellEditFinishing event to validate the data before putting it back into your model.
So first, handling the CellEditStarting event:
private void objlv_CellEditStarting(object sender, CellEditEventArgs e)
{
//e.Column.AspectName gives the model column name of the editing column
if (e.Column.AspectName == "DoubleValue")
{
NumericUpDown nud = new NumericUpDown();
nud.MinValue = 0.0;
nud.MaxValue = 1000.0;
nud.Value = (double)e.Value;
e.Control = nud;
}
}
This creates your editing control. If you want to make sure the size is right, you can set the size of the control (in this case a NumericUpDown) to the cell bounds using e.CellBounds from the event object.
This will show the editor when you click in the cell. Then you can handle the editor finished event to validate the data:
private void objlv_CellEditFinishing(object sender, CellEditEventArgs e)
{
if (e.Column.AspectName == "DoubleValue")
{
//Here you can verify data, if the data is wrong, call
if ((double)e.NewValue > 10000.0)
e.Cancel = true;
}
}
I don't think handling it is required, but its good practice to validate data from the user.
The editing control in the CellEditStarting event can be any control, even a user defined one. I've used a lot of user defined controls (like textboxes with browse buttons) in the cell editor.
[Edit]
I uploaded an example here dropbox link that seems to work. Might not be in the exact view as needed, but seems to do the job.

For anyone else with this problem. I had it specifically when trying to edit a 'null' value in a decimal? on the OLV on a tab page. Solution for me was to set UseCustomSelectionColors to 'False'. I didn't look elsewhere to see if it was reported as a bug. Seems like a bug.

Get Media ID dynamically

I am currently working in a project with c# and umbraco CMS. And now im facing some issues one of them is that I don't know how to get the media ID dynamically, please take a look ID COMES FROM UMBRACO
Media file = new Media(3557);
string url = file.getProperty("umbracoFile").Value.ToString();
string teste = file.getProperty("impressions").Value.ToString();
if (teste == "" || teste == null) { teste = "0"; }
int count= Convert.ToInt32(teste);
file.getProperty("impressions").Value = count+1;
file.Save();
Do you see that 1st line ? Media file= new media(id)? I want to get this id dynamically and I will explain why. I have this handler in order to get the banner clicks on the site. I have 4 images and I want to have a count for how many times the client clicks on them. So for that I can't have the id = 3557 , I need to get the id of the image dynamically.

I assume you are using an event handler, something like:
protected void imgMyMedia_OnClicked(object sender, EventArgs e) { your code }
In that case, you can cast the sender object to your control type, and read any parameter set there. I recon it would be something like this:
MediaControl myMedia = (MediaControl)sender;
int ID = myMedia.MediaId;
or something similar. I am not familiar with the umbraco code and can not be as precise, but this should be about right.

When you render the image in the first place you want to put the image id in a data attribute so your html will be something like:
<img src="/media/someimage.jpg" data-id="someMediaIdHere" alt="alt" title="title" />
Then use that when your javascript picks up the onclick event, then you can pass the image id to the server side and do your tracking.

Setting ViewSheetSetting.InSession.Views Property

Has anyone worked with setting the InSession.Views property?
The problem I have is that when I set the following property immediately after opening a document it doesn't work (i.e. the Views size is still 0 even though the viewSet has 4 items).
revitDocument.PrintManager.ViewSheetSetting.InSession.Views = viewSet;
but after modifying the In-Session view/sheet set using print dialog in revit, then I can assign to it.
does anyone know why?

Revit stores the current view sheet set in the variable Document.PrintManager.ViewSheetSetting.CurrentViewSheetSet and that's what it's really using . At the beginning when you are setting the InSession you should be setting the CurrentViewSheetSet instead. The reason that it is working after using the print dialog is that it is setting the CurrentViewSheetSet to InSession. What I would do is to create a temporary ViewSheetSetting on document open and then delete it when the document closes. Below is some of the code that I used though with mine I only kept the ViewSheetSetting for the scope of a single function call instead of from document open to document close.
For Open
const string tempoarySheetSetSettingName = "Temp Sheet Set";
ViewSheetSetting viewSheetSetting = _printManager.ViewSheetSetting;
//Save your temporary sheet set
_printManager.ViewSheetSetting.SaveAs(tempoarySheetSetSettingName);
ViewSheetSet selected = null;
FilteredElementCollector viewCollector = new FilteredElementCollector(document);
viewCollector.OfClass(typeof(ViewSheetSet));
//Find the sheet set that you just created
foreach (ViewSheetSet set in viewCollector.ToElements())
{
if (String.Compare(set.Name, tempoarySheetSetSettingName) == 0)
{
selected = set;
break;
}
}
//Set the current view sheet set to the one that you just created
viewSheetSetting.CurrentViewSheetSet = selected;
//Set the views to which ever set you would like to print
viewSheetSetting.CurrentViewSheetSet.Views = viewSetToPrint;
viewSheetSetting.Save();
For Printing
Your user will need to select the temporary view set that you created whenever they print.
For Close
_printManager.ViewSheetSetting.Delete();

In Revit 2015 using VB.Net I couldn't force this ViewSheetSet Colletor to work like this:
Dim VSSCollector As New FilteredElementCollector(curDoc)
VSSCollector.OfClass(oftype(ViewSheetSet))
Instead I used this and it worked:
Dim VSSCollector As New FilteredElementCollector(curDoc)
VSSCollector.OfClass(GetType(ViewSheetSet))

Image name as string, use it to make image visible WPF with C#

I have an image name as a string. The real imagename on the form is called "image". So i get something like this:
image.Visibility = Visibility.Hidden;
string imageName = "image";
// need something here to make it usable...
changedImageName.Visibility = Visibility.Visible;
Now, a string can not be used in combination with the Visibility property.
I cant really find what i must make the string to, to make it usable for the visibility property.
If i see this page: http://msdn.microsoft.com/en-us/library/system.windows.visibility.aspx
Do I understand correct that I make it a "enum" ? And if yes, how do I get a string to that property?
EDIT 1
I see I have not been explaining it proper enough.
I forgot to mention I am using a WPF form.
on this form, I have put an image.
In the initialize part, the image get set to hidden.
so for example the imagename I named "Image"
so I use image.Visibility = Visibility.Hidden;
later on in my code, I want to make the image visible again, depending on what the user does.
so, instead if just using the name to get the image visible again, I want to use a string.
this string is looking exactly as the name of the image.
but i cant use the string in combination with the Visibility function.
but i cant find anywhere what i must make this string to, to be able to use that visibility option on it.
hope i explained a bit better now :).
Later on, i will have multiple images on the WPF window.
So the key is that i will use the string, that is corresponding with the name of the image.
Depending on what the user has input into the string, some image will or will not show.
EDIT 2
If you have:
String theName = ImageName.name
you can get the name of the image into a string, so you can do stuff with it.
i am looking for a way to do the exact opposite of this. So i want to go from a string, to that name, so after that i can use this to control the image again.
Edit 3
some example:
private void theButton_Click(object sender, RoutedEventArgs e)
{
//get the Name property of the button
Button b = sender as Button;
string s = b.Name;
MessageBox.Show("this is the name of the clicked button: " + s);
//the name of the image to unhide, is the exact same as the button, only with IM in front so:
string IM = "IM";
IM += s;
MessageBox.Show("this string, is now indentical to the name of the image i want to unhide, so this string now looks like: " + IM );
// now, this wont work, because i cant use a string for this, although the string value looks exactly like the image .name property
// so string IM = IMtheButton
// the image to unhide is named: IMtheButton.name
IM.Visibility = Visibility.Visible;
}

looks like you're using WPF, so you can create a boolean to visibility converter and use it with a boolean (and create a method that receives string if necessary) and just use:
<ContentControl Visibility="{Binding Path=IsControlVisible, Converter={StaticResource BooleanToVisibilityConverter}}"></ContentControl>
or any other converter...
check this links:
http://bembengarifin.wordpress.com/2009/08/12/setting-visibility-of-wpf-control-through-binding/
http://andu-goes-west.blogspot.com/2009/05/wpf-boolean-to-visibility-converter.html
http://msdn.microsoft.com/en-us/library/system.windows.controls.booleantovisibilityconverter.aspx
EDIT 1:
so then you will have to iterate over the images and check if your string is equals to name of the Image class.
something like this (not tested):
foreach (Image img in container.Items)
{
if img.Name == yourMagicallyString;
{
img.Visibility = Visibility.Visible;
}
else
{
img.Visibility = Visibility.Hidden;
}
}

If I understand correctly, you are trying to find a control based on the name or ID of the control. If so, try this:
Control changedImage = this.Controls.Find("image", false)[0];
Depending on what you are targeting and what version you might need to tweak a little
EDIT Updated per #Alexander Galkin comments about Find returning an array. There should definitely be some checking and whatnot but I'm leaving that up to the OP.
EDIT 2 For finding a control by name in WPF see this post.

The code I was looking for:
object item = FindName(IM);
Image test1 = (Image)item;
test1.Visibility = Visibility.Visible;